US4874662A
Expired / Lapsed
US
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Process for impregnating organic fibers
Assignee: Wacker Chemie AG
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Filing: 1988-08-26
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Granted: 1989-10-17
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Expires: 2008-08-26
Abstract
Abstract The invention is a process wherein organic fibers are impregnated with organopolysiloxane (1) containing, in addition to diorganosiloxane units in which the two SiC-bonded organic radicals are monovalent hydrocarbon radicals, at least two monovalent SiC-bonded radicals containing basic nitrogen, at least some of the SiC-bonded radical containing basic nitrogen comprising SiC-bonded N-cyclohexylaminoalkyl radicals. The SiC-bonded N-cyclohexylaminoalkyl radicals are in monoorganosiloxane and/or diorganosiloxane and/or triorganosiloxane units. The preferred SiC-bonded N-cyclohexylaminoalkyl radical is the SiC-bonded N-cyclohexyl-3-aminopropyl radical. The organopolysiloxane (1) contains optionally condensable groups which are bonded directly to silicon. The organopolysiloxane (1) containing condensable groups bonded directly to silicon can be employed together with an organopolysiloxane (2a) containing at least 3 Si-bonded hydrogen atoms per molecule, or together with trialkoxy- or tetraalkoxysilanes (2b), and if appropriate, together with a catalyst (3) for the condensation of condensable groups bonded directly to silicon.
Inventors
- 👤 Karl Huhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:11
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/20; Y10T442/2762; Y10T442/277; Y10T442/2803; Y10T442/2861; Y10T442/2877; Y10T442/291; Y10T442/2918
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
62 words
A process for treating an organic fiber which comprises: Impregnating the organic fiber with a composition comprising an organopolysiloxane (1) containing, in addition to diorganosiloxane units in which the two SiC-bonded organic radicals are monvalent hydrocarbon radicals, at least two monovalent SiC-bonded radicals containing basic nitrogen wherein at least a portion of the SiC-bonded radicals containing basic nitrogen comprise SiC-bonded N-cyclohexylaminoalkyl radicals.
Claim 2
Dependent Claim
62 words
A process for treating an organic fiber which comprises: Impregnating the organic fiber with a composition comprising an organopolysiloxane (1) containing, in addition to diorganosiloxane units in which the two SiC-bonded organic radicals are monvalent hydrocarbon radicals, at least two monovalent SiC-bonded radicals containing basic nitrogen wherein at least a portion of the SiC-bonded radicals containing basic nitrogen comprise SiC-bonded N-cyclohexylaminoalkyl radicals.
Claim 3
Dependent Claim
22 words
A process of claim 1, wherein the SiC-bonded N-cyclohexylaminoalkyl radicals are present in at least one of monoorganosiloxane, diorganosiloxane and triorganosiloxane units.
Claim 4
Dependent Claim
14 words
A process of claim 1, wherein the SiC-bonded N-cyclohexylaminoalkyl radical is an N-cyclohexyl-3-aminopropyl radical.
Claim 5
Dependent Claim
14 words
A process of claim 2, wherein the SiC-bonded N-cyclohexylaminoalkyl radical is an N-cyclohexyl-3-aminopropyl radical.
Claim 6
Dependent Claim
16 words
A process of claim 1, wherein the organopolysiloxane (1) contains condensable groups bonded directly to silicon.
Claim 7
Dependent Claim
16 words
A process of claim 2, wherein the organopolysiloxane (1) contains condensable groups bonded directly to silicon.
Claim 8
Dependent Claim
16 words
A process of claim 3, wherein the organopolysiloxane (1) contains condensable groups bonded directly to silicon.
Claim 9
Dependent Claim
22 words
A process of claim 5, wherein the composition further comprises an organopolysiloxane (2a) containing at least 3 Si-bonded hydrogen atoms per molecule.
Claim 10
Dependent Claim
22 words
A process of claim 6, wherein the composition further comprises an organopolysiloxane (2a) containing at least 3 Si-bonded hydrogen atoms per molecule.
Claim 11
Dependent Claim
22 words
A process of claim 7, wherein the composition further comprises an organopolysiloxane (2a) containing at least 3 Si-bonded hydrogen atoms per molecule.
Claim 12
Dependent Claim
17 words
A process of claim 5, wherein the composition further comprises at least one of trialkoxysilane and tetraalkoxysilane.
Claim 13
Dependent Claim
17 words
A process of claim 6, wherein the composition further comprises at least one of trialkoxysilane and tetraalkoxysilane.
Claim 14
Dependent Claim
17 words
A process of claim 7, wherein the composition further comprises at least one of trialkoxysilane and tetraalkoxysilane.
Claim 15
Dependent Claim
20 words
A process of claim 8 further comprising a catalyst (3) for condensation of the condensable groups bonded directly to silicon.
Claim 16
Dependent Claim
20 words
A process of claim 10 further comprising a catalyst (3) for condensation of the condensable groups bonded directly to silicon.
Claim 17
Dependent Claim
20 words
A process of claim 11 further comprising a catalyst (3) for condensation of the condensable groups bonded directly to silicon.
Claim 18
Dependent Claim
20 words
A process of claim 13 further comprising a catalyst (3) for condensation of the condensable groups bonded directly to silicon.
Claim 19
Dependent Claim
11 words
A process of claim 1, wherein the impregnated fiber is heated.
Claim 20
Dependent Claim
9 words
A treated fiber of the process of claim 1.
Claim 21
Dependent Claim
9 words
A treated fiber of the process of claim 3.
Claim 22
Dependent Claim
9 words
A treated fiber of the process of claim 5.
Claim 23
Dependent Claim
9 words
A treated fiber of the process of claim 7.
Claim 24
Dependent Claim
9 words
A treated fiber of the process of claim 8.
Claim 25
Dependent Claim
9 words
A treated fiber of the process of claim 10.
Claim 26
Dependent Claim
9 words
A treated fiber of the process of claim 11.
Claim 27
Dependent Claim
9 words
A treated fiber of the process of claim 13.
References Cited (Backward Citations)
US4247592A
Cited
US4559385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |